2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Every car needs periodic valve adjustment. If this is not done on time, the car will begin to lose its traction, the drive will begin to make noise and the load on the rest of the internal combustion engine will increase. To prevent this from happening, it is necessary to adjust the valves in a timely manner. Learn how to do this in today's article.
Do-it-yourself valve clearance adjustment
First of all, you need to understand one nuance. Checking and adjusting the valve clearance should only be done when the engine is cold. The temperature recommended by experts for setting the gap is no more than 38 degrees.
After our motor has cooled down, we can start adjusting. First we need to remove the cylinder head cover, then rotate the engine until the first cylinder enters the BMT position. In this case, you should pay attention to the labels. It is important that they match the pin on the oil pump pulley.
You should also pay attention to the pushers of the intake and exhaust valves. devices on the groundcylinder should have a small gap, and on the 4th - be tightly clamped. If this does not happen, turn the motor one more turn.
Now we take a special probe and measure the gap between the valves. Ideally, it should not jump or get stuck much. The probe should travel the distance with little effort. If the device quietly flies through the gap or, conversely, is stuck halfway, then it is necessary to adjust the valves. In this case, we take two open-end wrenches (usually 13 and 17 millimeters) and release the lock nut on the adjusting screw. Now you can safely set the required clearance.
How much clearance should there be?
It is worth noting that absolutely on all cars this value is 0.15 millimeters. Moreover, this value does not depend on how the gas distribution mechanism of the car is arranged.
How often should the valves be adjusted?
You need to set the gap immediately after obvious signs were noticed. This is a loss of power, dynamics, characteristic "shots" from the exhaust pipe, and so on. If we talk about numbers, then you need to adjust the valves every 20-30 thousand kilometers. If at the last mark you did not experience any exhaust or loss of power, still check the gap between the valves. So you will be sure that your iron friend is in good condition.
Also, after setting the required clearance, you can replace the adjusting washers on the upper side of the pushers. To do this, turn the crankshaft and presspusher inside with a special tool. After that, we take out the puck. This can be done with a small screwdriver or a magnet. But before pressing it back, we turn the device until it turns to the candles from the upper side. Ideally, two pushers should be pressed at once.
After the gap has been set, we assemble everything in the reverse order and check the operation of the engine. It should not make any clicks during operation and other characteristic sounds.
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